Internal-combustion engine



Sept. 17, 1929. 'G. H. BREKKE v INTERNAL- COMBUSTION ENGINE Filed Sept 6. 1927 INVENTOR 60a rura- H Ignaz:

///7 V//f/VV W//////// Patented Sept. 17, 1929 y I UNITED STATES PATENT OFFICE,

GUSTAVE H. BREKKE, OF BERKELEY, CALIFORNIA INTERNAL-COMBUSTION ENGINE Application filed September a. 1927. Serial 1%. 217,769.

My invention relates to improvements in inclined so as to direct the gases at an angle internal combustion engines and it consists with respect to radii extending from the cenin the combinations, constructions, and ter of the piston The openings? (see Figarrangements hereinafter described and ure 2) extend at an opposite angle to that of 5 l i d, the openings 6. This construction causes the An object of my invention is to provide gases flowing from the openings 6 and 7 to means for directing a new charge of gas into cross each other and toforin a blanket of gas a cylinder in such a manner as to cause this which quickly thickens so as to finally fill the charge to forcethe exhaust gases out of the entire interior of the cylinder 1. I have l0 cylinder without mixing with them. In this found that this issuing of the gases at anway the new charge is not wasted by becomgles crossing each other forms a layer withing partially mixed with the exhaust gases in the cylinder, which will not mix with the and being exploded with the latter. exhaust gases but will drive the exhaus gases A further object of my invention is to out through the exhaust port 8 even though 15 provide a device of the type described in not mixing with them.

which the new gases forms a layer adjacent to The means for forcing the new gases into the top of the piston which layer grows quickthe portion of the cylinder which disposed 1y thicker so as to uniformly push the explodabove the piston 3 comprises a plurality of ed gases from the cylinder thereby preventducts 9 which communicate with the open-- 30 ing the mixing of the new gases with the exings 6 and 7 and with openings 10 in the haust gases. cylinder wall 1. The pistonhas a number 7 Other objects and advantages will appear of openings 11 therein which are aligned with in the following specification, and the novel the openings 10 when the piston reaches its features of my invention will be particularly lowermost position. The new gas is under 5 pointed out in the appended claims. compression beneath the piston 3 and will My invention is illustrated in the accomflow through the openings 11 and 10 as soon as panying drawing forming a part of this apthese openings are brought into alignment plication, in which: with each other.

Figure 1 is a side elevation of the device, From the foregoing description of the dem a portion thereof being shown in section for vice, the operation thereof may be readily clarity. understood.

Figure 2 is a section along the line 2-2 of The piston acts as a valve for controlling Fi 1, a d i the flow of new gases through the cylinder.

Figure 8 is a section along the line 33 of In addition to this the openings 6 and 7 di-. 15 Figure 1, met the new gas into the cylinder in such a In carrying out my. invention I provide a manner as to prevent the mixing of these cylinder 1 which may be cooled by water disgases with the exhaust gases. This point has posed in a water jacket 9. if desired. A piston already been clearly set forth. The device is 3 is slidably mounted in the cylinder 1 in the extremely simple in construction and prolo usual manner. An exhaust valve 4 commuvides novel means for causing the new gases 90. nicates with the cylinder as shown. The to act as an ejector for the burnt gases yet gases within the cylinder are ignited by a at the same time preventing theniixing of spark plug 5. the two gases.

It will be noted from Figure 1 that the cyl- The device is also adapted to be used on inder is provided with two rows of openings Diesel engines for scavenging the burnt gases.

6 and 7 which are inclined downwardly so as I claim: to direct gas flowing therethrough in a down- 1. In a device of the type described, a cylinward direction onto the top of the piston 3. der having a plurality of rows of gas inlet In addition to this downward inclination of openings formed therein, the openings in one 50 the openings 6 and 7 ,the row of openings 6 are row being inclined with r spect to the openings in an adjacent row, all of said rows of openings being inclined-With respect to radii of said cylinder.

2. In a device of the type described, a cylin- 5 der having a plurality of rows of gas inlet openings formed therein, the openings in one row being inclined with respect to the openings in an adjacent row, said rows of openings forming said gas into layers, each of said 0 layers being Whirled in the opposite direction with respect to the adjacent layer.

3. In a device of the type described, a cylinder, a piston slidably disposed in said cylinder, said cylinder having a plurality of rows of gas inletopenings formed therein, the

openings in one row being inclined with respect to the openings in an adjacent row, said openings being inclined downwardly for directing the gases against said piston. GUSTAVE H. BREKKE. 

